// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#ifndef _ST_HPC_PPL_NN_COMMON_DEVICE_CONTEXT_H_
#define _ST_HPC_PPL_NN_COMMON_DEVICE_CONTEXT_H_

#include "ppl/common/retcode.h"
#include "ppl/nn/common/common.h"

namespace ppl { namespace nn {

class PPLNN_PUBLIC DeviceContext {
public:
    struct Type {
        char str[8]; // a null-terminated string

        bool operator==(const Type& t) const {
            return ((*(int64_t*)(this->str)) == (*(int64_t*)(t.str)));
        }
    };

public:
    virtual ~DeviceContext() {}

    virtual const Type& GetType() const = 0;

    /** @brief synchronize all operations on this device */
    virtual ppl::common::RetCode Synchronize() = 0;

    virtual ppl::common::RetCode Configure(uint32_t, ...) = 0;
};

}} // namespace ppl::nn

#endif
